She comes to the aid of a schoolmate (Kodi Smit-McPhee) targeted by bullies, while she's under the eye of a very quiet guardian ( Richard Jenkins, also superb). Don't be deceived by the young ages of many of the central players here: The violence is quite shocking but also essential to the story. DVD extras: two "making-of" documentaries; audio commentary by Reeves; deleted scenes; poster gallery; comic-book prequel. *** (R: AS. P, GV) (Also on Blu-ray)